AUTHOR
- American Association of State Highway and Transportation Officials
- National Cooperative Highway Research Program 3 results
- National Research Council (U.S.). Transportation Research Board 3 results
- Transit Development Corporation
- United States. Federal Transit Administration 3 results
- Transit Cooperative Research Program 2 results
- Boyd, M. Annabelle 1 results
- Campbell, Sarah 1 results
- McCormick Taylor (Firm) 1 results
- TransManagement, Inc 1 results